seo not my field, but bhw is.
tip - people will offer advice if they see you have done something that requires help to tweak
but asking to be fed what when where how without even starting, people wont do.

Believe me, you definitely don't need an expert for the thing you are asking. There are literally millions of articles and courses which will teach you SEO, you should look into it.

First go ahead and learn the basics, from what I'm seeing you have no idea about SEO or how internet marketing works.
And to answer your question - yes, you can definitely get into the first page of google, but you need to know what you're doing. Also there are some factors to consider for raking your keyword on the first page, like how competitive the keyword you are trying to rank is and etc.

You should also learn how to learn, nobody on this forum will babysit you through the process of making money online. Go around and take courses, read books, articles and so on.

Genuine Advice - Buy a keyword research service and find 100 low comp kws for your niche, Find a quality article writing service and keep adding articles, Find an SEO service and do proper on page seo on your site, Find a backlink provider and start buying small to medium packs. Keep repeating the process until you find yourself on first page.
Now for the cost, you have to look at individual service charges and add them for a total cost.. Now you have your answers

Note that adblockers might block our captcha, and other functionality on BHW so if you don't see the captcha or see reduced functionality please disable adblockers to ensure full functionality, note we only allow relevant management verified ads on BHW.